Q3: for the circuit shown below use Loop/Mesh method (KvL) to find Va 2IK 서mh
The correct KVL equation for the shaded loop in terms of the given branch currents, is given by: İR, R1 R4 İR N 3R2 İR; R3 0 -i R, R1 – i R, R2 + i R3 R3 - V1 = 0 o -ir, R1 +iR, R2 – i R3 R3 – V1 = 0 O R3iR3 + V1 – ir R1 – R2iR2 = 0 0 - R2iR2 – R3iR3 - V1 + iR, R1 = 0
1. Use KVL to find V. 60 20 9V 3V
3-3: Use KVL/KCL and Ohm's Law as needed to find the values of v1 and v2. You must show separate KCL and KVL equations, no credit will be given if other methods such as nodal analysis are used. 80 80 Ω υ,Σ 120 Ω V140 6 A
3) (2 pts) Use KVL to find the value of 1, in the following circuit 10 hms 20 1 40 V
Please show steps for solving this question. Specifically
addressing how to write the KVL equations when the current and
voltage + and - seem to contradict. For example, I think Ic should
drop voltage when going up over the resistor. Is it ok to change
the current reference direction before solving or would that throw
off the answer?
2) For the circuit shown, find the value of Iq, Ib, Ic and Va: Hint: substitute the result from KCL into two...
A yo-yo is 4.25 inches in diameter. There is a sticker on the outer edge. How many revolutions per minute would the yo-yo described above have to complete if the sticker on the yo-yo is to be spinning at a rate of 42 miles per hour? Round your answer to two decimal places.
Q3: In the circuit shown below find V, and V, using KVL method. V. S 2 4
A massless string is wrapped around a uniform solid cylinder, or a yo-yo, and the yo-yo starts falling from rest. Find the falling speed, in m/s, of the yo-yo when it drops to 0.91 m lower.
A yo-yo: A simple model of the yo-yo toy is below. A string is wound around a uniform disk of radius R=0.3 m and mass M=2kg. The disk is released from rest when the string is vertical and its top end is tied to a fixed bar as in the figure below. Find the torque of the disk around THE CONTACT POINT. Find the speed of the yo-yo center of mass once it went down 2 meters.